a starter.ipynb file deleted

lecture_material/07-recursion-and-graphs/starter.ipynb

-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "id": "2f385b68",
-   "metadata": {},
-   "source": [
-    "# Graphs\n",
-    "\n",
-    "Today: graph visualization (graphviz)\n",
-    "\n",
-    "Upcoming: graph computation (from classes)\n",
-    "\n",
-    "**Nodes**: some kind of entity.  **Edges**: relationships between those entities."
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "id": "3d6757a4",
-   "metadata": {},
-   "source": [
-    "### Examples\n",
-    "\n",
-    "* Git: https://www.oreilly.com/library/view/git-pocket-guide/9781449327507/ch01.html#fig0101\n",
-    "* Political Allignment: https://www.reddit.com/r/dataisbeautiful/comments/1q7b3s/voting_relationships_between_senators_in_the/\n",
-    "* Evolution: https://commons.wikimedia.org/wiki/File:The_Ancestors_Tale_Mammals_Phylogenetic_Tree_in_mya.png\n",
-    "* Friendship: https://facebook.com/notes/facebook-engineering/visualizing-friendships/469716398919/\n",
-    "* Accounting: https://wisc-ds-projects.github.io/f19/past/langston-ellen-zan.pdf#page=22\n",
-    "* Transit: https://arxiv.org/pdf/1611.01890.pdf#page=14\n",
-    "\n",
-    "### Graphviz Setup\n",
-    "\n",
-    "```\n",
-    "sudo apt install -y graphviz\n",
-    "pip3 install graphviz\n",
-    "```"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "6b375c8d",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "markdown",
-   "id": "1347be90",
-   "metadata": {},
-   "source": [
-    "## Paths\n",
-    "\n",
-    "A **path** is a sequence of edges to get from one node to another"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "426d7460",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "markdown",
-   "id": "274d67e1",
-   "metadata": {},
-   "source": [
-    "## Directed Graphs, DAGs"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "c1877373",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "markdown",
-   "id": "257bf913",
-   "metadata": {},
-   "source": [
-    "## Trees\n",
-    "\n",
-    "**Tree**: DAG where one node (the **root**) has no parents and all others have exactly one parent"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "7e04db8c",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  }
- ],
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-   "display_name": "Python 3 (ipykernel)",
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